【Material】Universal power adapter is made of fire-proof pc engineering plastic alloy, which makes it heat-resistant
【Safety Protection】Multi-level protections of over voltage protection, short-circuit protection, over current protection and so on make sure a safe charging
【Fast Charging】21V/1A helps achieve a fast charging, Adopting 100-240V wide voltage to make it suitable for different areas
【100-240V】Copper core enables this lithium battery charger adapter to work for a very long time
【Customer Service】If you have any problem with it, please feel free to let us know and we'll be happy to solve your problem